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K
kwilcoxAug 5, 2025
What to do if SICC Tech CMAX has no or poor sanitary hot water production?
- TTiffany HernandezAug 5, 2025
If your SICC Tech Water Heater isn't producing enough hot water, several factors could be the cause. First, too much air in the primary circuit might be the problem; try venting the circuit and installing an automatic air valve if one isn't present. Another cause could be a limestone-encrusted exchanger, which would require cleaning. A hole in the exchanger could also be the cause; check for leakage by disassembling the primary circuit, pressurizing the secondary circuit, closing both the inlet and outlet, and using a pressure gauge to monitor pressure changes. If there is a leak, replace the heat exchanger. Finally, excessive pressure from the supply network could be the issue, which can be resolved by installing a pressure reduction filter.
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